DSpace About DSpace Software

Dyuthi @ CUSAT >
Faculty of Sciences >

Please use this identifier to cite or link to this item: http://purl.org/purl/668

Title: Fabrication and Characterization of Dye Sensitized Polymer Films for Holographic Applications
Authors: Beena,Mary John
Sudha Kartha, C
Keywords: Poly (vinyl alcohol) (PVA)
Poly (vinyl chloride)(PVC)
Polymer matrices
Methylene blue (MB)
Holographic applications
diffraction efficiency
Issue Date: Jan-2008
Publisher: Department of Physics
Abstract: Holographic technology is at the dawn of quick evolution in various new areas including holographic data storage, holographic optical elements, artificial intelligence, optical interconnects, optical correlators, commerce, medical practice, holographic weapon sight, night vision goggles and games etc. One of the major obstacles for the success of holographic technology to a large extent is the lack of suitable recording medium. Compared with other holographic materials such as dichromated gelatin and silver halide emulsions, photopolymers have the great advantage of recording and reading holograms in real time and the spectral sensitivity could be easily shifted to the type of recording laser used by simply changing the sensitizing dye. Also these materials possess characteristics such as good light sensitivity, real time image development, large dynamic range, good optical properties, format flexibility, and low cost. This thesis describes the attempts made to fabricate highly economic photopolymer films for various holographic applications. In the present work, Poly (vinyl alcohol) (PVA) and poly (vinyl chloride) (PVC) are selected as the host polymer matrices and methylene blue (MB) is used as the photosensitizing dye. The films were fabricated using gravity settling method. No chemical treatment or pre/post exposures were applied to the films. As the outcome of the work, photopolymer films with more than 70% efficiency, a permanent recording material which required no fixing process, a reusable recording material etc. were fabricated.
URI: http://dyuthi.cusat.ac.in/purl/668
Appears in Collections:Faculty of Sciences

Files in This Item:

File Description SizeFormat
Dyuthi-T0409.pdfPDF3.72 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback